/*
 * Copyright 2017-2019 original authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.micronaut.messaging;

import io.micronaut.messaging.exceptions.MessageAcknowledgementException;

/**
 * A contract that allows for responding to messages.
 *
 * @author James Kleeh
 * @since 1.1.0
 */
public interface Acknowledgement {

    /**
     * Acknowledges the message.
     *
     * @throws MessageAcknowledgementException if an error occurred acknowledging the message
     */
    void ack() throws MessageAcknowledgementException;

    /**
     * Rejects the message.
     *
     * @throws MessageAcknowledgementException if an error occurred rejecting the message
     */
    void nack() throws MessageAcknowledgementException;
}
